Home / 208,225.30-287,334.55-117,590.21

Finding the Fourth Proportional to 208,225.30, 287,334.55 and 117,590.21

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Solution

The fourth proportional to 208,225.30, 287,334.55 and 117,590.21 is: 162,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,225.30 : 287,334.55 = 117,590.21 : x
  2. Step 2: Convert to fraction form
    208,225.30/287,334.55 = 117,590.21/x
  3. Step 3: Cross multiply
    208,225.30x = 287,334.55 × 117,590.21
  4. Step 4: Simplify right side
    208,225.30x = 33,787,729,219.81
  5. Step 5: Solve for x
    x = 33,787,729,219.81/208,225.30
  6. Step 6: Final answer
    x = 162,265.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.